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Building Materials

Damp Proofing & Membranes delivery in Greater London

Damp proofing materials stop moisture rising or passing through a building: a damp-proof course (DPC) in the walls and a damp-proof membrane (DPM) under the floor.

For sites in Greater London, our damp proofing prices include delivery to your postcode, with the offload agreed when you order.

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Rolls of black damp-proof course and a folded damp-proof membrane on a floor slab

Greater London at a glance

Covering
73 towns across Greater London
Postcode areas
E, EC, N, NW, SE, SW, W, WC, BR, CR, DA, EN, HA, IG, KT, RM, SM, TW, UB
Delivery
Standard mainland delivery
How it arrives
Rolls with a mixed load
Neighbouring areas
Surrey, Hertfordshire, Buckinghamshire

What damp proofing can we deliver to Greater London?

  • Radon barriersGas-resistant membranes for areas that need radon protection.
  • Weep ventsFor drainage and ventilation at the base of cavities and over trays.
  • DPM sheetingHeavy-gauge polythene membrane under concrete floors.
  • Cavity trays and stop endsTo direct water out of the cavity over openings.
  • Liquid DPM and tankingCoatings for screeds and below-ground walls.

Damp Proofing & Membranes delivered in Greater London towns

Quantities: a worked example

An extension in Greater London with 16 m of cavity wall needs DPC in both leaves: about 2 rolls in 30 m lengths once laps are allowed for. A 20 m² floor slab needs about 23 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.

Getting damp proofing onto your Greater London site

Rolls are light enough to travel with a mixed load and are handed off at the kerb. Our standard mainland delivery area covers Greater London.

  • If the site is up a shared drive or behind other houses, tell us the distance from the road.
  • If neighbours share the access, it helps to let them know a lorry is coming.
  • If the drop point is block paving or soft ground, say so; heavy pallets and bulk bags can mark or sink.

Before you order damp proofing

Laps and joints

DPM and DPC need generous laps and sealed joints; follow the manufacturer's guidance.

Is radon protection needed?

Parts of the UK need radon protection in new buildings and extensions. UKHSA radon maps show the areas; building control will tell you what applies.

In England, building work is checked against the Approved Documents, for example Part A for structure and Part L for energy efficiency, through your council's building control team or a registered building control approver.

Your questions answered

Is there a minimum order for delivery to Greater London?

There is no fixed minimum. For very small orders we will tell you honestly if the delivery cost outweighs the materials, so you can decide.

Can I add other materials to my Greater London delivery?

Yes. Put everything on one list, from damp proofing to fixings and PPE, and we will price it as one delivery where the products can travel together.

Where does the DPC go?

Usually at least 150 mm above outside ground level, linked to the floor DPM.

Do you supply cavity trays?

Yes, with stop ends and weep vents for openings and abutments.

Damp Proofing & Membranes in neighbouring areas

More materials delivered across Greater London

All building materials delivered across Greater London

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Tell us what you need and where it is going. We check the quantities and come back with a delivered price before you commit.

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